* {
    margin: 0;
    padding: 0;
}

.container {
    width: 1000px;
    margin: o auto;
    background: #95abe9;
}

header {
    text-align: center;
    padding-top: 80px;
}

header h1 {
    font-size: 28px
}

.btn {
    display: block;
    width: 128px;
    height: 30px;
    background-color: black;
    margin: 50px auto 20px auto;
    color: #ffffff;
    line-height: 30px;
    text-decoration: none;
    border-radius: 4px;
}